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کدام یک از فرآیندهای زیر بیشتر احتمال دارد که در مهندسی بافت با استفاده از سلول‌های بنیادی جنینی (ESC) به تحریک تمایز سلولی در جهت بافت‌های خاص مانند استخوان یا غضروف منجر شود؟ 👩🏻💻👩🏻🔬🌿
Anonymous Quiz
1. استفاده از محیط کشت غنی‌شده با فاکتورهای رشد BMP (Bone Morphogenetic Proteins)
2. ایجاد شرایط هایپوکسی با فشار کم اکسیژن در محیط کشت
3. مهار مسیر سیگنال‌دهی Wnt به‌وسیله مهارکننده‌های خاص
4. استفاده از مواد هیدروژلی به عنوان داربست‌های سه‌بعدی بدون افزودن فاکتورهای رشد
It is unclear who runs the account, although Russia's official Ministry of Foreign Affairs Twitter account promoted the Telegram channel on Saturday and claimed it was operated by "a group of experts & journalists." Unlike Silicon Valley giants such as Facebook and Twitter, which run very public anti-disinformation programs, Brooking said: "Telegram is famously lax or absent in its content moderation policy." In the past, it was noticed that through bulk SMSes, investors were induced to invest in or purchase the stocks of certain listed companies. Two days after Russia invaded Ukraine, an account on the Telegram messaging platform posing as President Volodymyr Zelenskiy urged his armed forces to surrender. "The result is on this photo: fiery 'greetings' to the invaders," the Security Service of Ukraine wrote alongside a photo showing several military vehicles among plumes of black smoke.
from tr
